Sorting device for sawn wood



G. E. JOH A'NSON. SORTING DEVICE FOR SAWN WOOD.

APPLICATION FILED NOV. 10, I919- h I I 1,349,836, PatentedAug. 17, 1920..

4 SHEETS-SHEET l- G. E. JOHANSONI SORTING'DEVICE FOR SAWN wdon. 7

APPLICATION FILED NOV: 10, 1919- R 4 SHEETS-SHEET 2.

a. E.JOH ANSON.

SOBTING DEVICE FOR SAWN WOOD.

Patented Aug. 17,1920.

1,349,836. ED n 10, 1919.

I 4 SHEETS-r-SHEET G. E. JOHANSON.

SORTING DEVICE FOR SAWN WOOD.

q Patented Aug. 17,1920.

4 SHEETSSHEET 1-- APPLICATION FILED N UV.10, 1919- UNITEDQSTATES PATENT} OFFICE.,,

GUSTAF EMANUEL JOHANSON, 0F SUNDSVALL, SWEDEN.

son'rnve DEVICE FOR SAWN WOOD.

To all whom it may concern:

Be it known that I, GUsrAF EMANUEL JOHANSON, a citizen of the Kingdom of Sweden, residing at Sundsvall, Sweden, have invented new and useful Improvements in Sorting Devices for Sawn Wood, of which the following is a specification.

This invention relates to sorting devices for sawn wood of the type in which the wood ness, -width,' length or quality, it being possible to effect the sorting according to one or more or all of said properties.

This object is obtained according to the invention by so placing the movable devices arranged in the runway that they are actuated bythe longitudinal side of the sawn wood lying transversely in relation to the longitudinal direction of the runway, the latter being preferably provided at the beginning with marks or stops serving to determine the position of the wood pieces in their longitudinal direction relatively to some of the movable devices effecting the sorting.

Some embodiments of the invention are illustrated in the accompanying drawings in which- Figure 1 is a side view of a sorting device arranged according to the invention. Fig. 2 is a side view of a modified embodiment thereof. .Fig. 3 is a plan view of the device.

Figs. 4 to 13 inclusive illustrate on an enlarged scale several details of the device.

Relating to Figs. 1 to'3, 1 designates a series of feed chains or the like provided with catchers 4 and running along a runway in the direction of arrowb in Fig. 1 around chain wheels secured to shafts 2 and 3. 11 is a circular saw placed near one edge of the-runway. 12 is another circular saw disposed, if necessary, near the opposite edge of the runway. Below the runway collecting compartments 9 and 10 are located, each adapted to receive one sort of the sawn wood. Each compartment is provided at the top in the runway with an aperture Specification ofLetters Patent. Patented Aug. 17, 1920. Application filed November 10, 1919. Serial No. 337,103.

intended for the compartment pass the aperture.

Feed chains 5 running above the collectmg compartments are provided with catchers 8 and driven by chain wheels 6 and 7 in the direction indicated by arrow 0 in Fig. 1. Each compartment is provided with a shaft 15 forming right angles with the direction of movement of the wood pieces. Secured to said shafts are arms lt in compartment 9, Fig. 6, and l6'and 14 in the compartments 10, Figs. 4c and 5 as well as arms 16, 17, 18, 19, 20 and 21 in the compartments 10, Figs. 4 and 5. Besides, the shaft 15 in compart- I ment 9 is provided with an arm 13. In the rest position of the arms 1 1 their free ends are raised above the plane of the runway, whereas the arm 13 is so curved that-its free end is situated below said plane and provided with a bent portion extending above the same plane (Fig. 6). In the rest position of the arms 14 they are situated in the plane of the runway thus closing the admission to the compartments 10, the arms 16 to 21 secured to the same shafts as the arms 14: having their free ends raised above the plane thus allowing the wood pieces to enter the space below said ends.

Placed in the compartments 10 are carriages running on rails and intended for loading of the wood. The compartment 9 contains circular saws 22 forcutting the wood dropping down therein.

The device described operates as follows: A in Figs. 1 and 2 is the end of the device where the wood pieces 25 are supplied by any transporting device (not shown) in the direction of arrow a (Fig. 3) for instance directly from the sawing machine or any other place. down onto a table 24: or immediately onto the feed chains'l. The table is to be preferred to the chains, because in the former f case the workman standing at D (Fig. 3)

The wood pieces then drop The dealor board is placed by the workman on the dhains in such manner that the rootend is cut by the circular'saw 11 with the 7 least possible waste wood. On the assumpable'and serve to determine in what collecting compartment the wood p-iece is to be dropped. If the wood-piece shall drop for instance in the compartment designated by 10 in Fig.1, it is moved to the stop 26 corresponding to the arm 17. The wood piece is then first moved 'to the arm 13 in compartment 9, said arm, owing to its shape described above, being pressed downward thus turning the arms 14; downward so as to close the admission to compartment 9 and causing the wood piece to pass by said compartment. The arm 16 in the next compartment 10 being situated outside the path of movement of the wood piece will not be actuated, and consequently the wood piece will pass over the arms 14 closing the admission to said compartment. The, wood piece then reaches the arm 17 which, while being raised, raises the corresponding arms 14, the wood piece then dropping down into the compartment 10 I.

In special productions it will sometlmes happen that the pieces sawed out of the timher are not,squared throughout the Whole length, but ,are first cut to shorter pieces, each of which is then squared separately.

' In this case such wood is suitably collected in a place where the cutting and the squaring can take place. To this purpose the compartment 9, provided with the circular saws 22, is disposed. The wood pieces intended for this compartment are preferably sq placed that they after having passed the circular'saw 11, enter without further handling below the raised arms 14 without contacting the arm 13 and then drop down into the compartment 9 for further treatment.

If the top not the wood pieces is also to be cut, the circular saw 12 is used. In this case the wood pieces, after the root-end has been cut by the saw-11, are moved toward the opposite side of. the device and then cut by the saw 12 according to stops or the like placed in the runway. 11 such case the arms 13 and 16 to 21 may be situated at said opposite side of the device, or, if this is not the case mechanisms may be provided to 'return the wood pieces to the side where said arms are placed. p

The arms 14 and 16 to 21 may also be arranged as the arms 14 and 13, that is to say,

they may normally .be raised and then lowered by the wood piece which has to pass the ing same. In this case the arm 16 should be placednear the outermost chain 5 and the arm 21 farthest away from the same.

Sorting accordin to length may be effected wlthout moving the wood pieces longitudinally, as described above, if all ends of.

the pieces be placed close to a certain stop, as for instance E, Fi 3, at the side of the sorting device opposite to the arms 16 to 21 and if said arms be placed at a distance Sorting of the wood according to thickness,

width, length and quality in different combinations of these properties may be effected by means of the devices shown in Figs. 8 to 13 inclusive, Figs. 8 to 11 showing particularly a device for sorting according to thickness and width. In this device the arms 1st are placed on the shafts 15, the arms 16 to 21 being substituted by double arms 26 in Figs. 8 and 9 and 26 in Figs. 10 and 11 each of said arms being swingable about a pin 27. The end of each double arm 26 and 26 directed away from the arriving wood is provided with a projection, a lug 29 or the like, adapted to strike, on the swinging movement of the arm, against a crank 80 secured to the corresponding shaft 15 thus turning the shaft 15 or the arms 14 respectively to the position shown by stippled lines. At the opposite end each arm 26 and 26 is provided with a projection 31 extending in the longitudinal direction of shaft 15 and positioned above the part of therunway where the corresponding ends of the wood pieces pass. The last named-ends of the arms 26 and 26* and the projections 31 are so arranged that lecting compartments. Owing thereto each arm 26 and 26 can only be actuated by wood pieces of a certain thickness, the correspondarm 14 thereby being raised. Wood pieces of less thickness pass below the projections 31 pertaining to wood pieces of greater thickness without actuating the corresponding arms 26 and 26. Of course, the device should be so arranged that the wood pieces of greater thickness are separated before those of less thickness.

The sorting device may also be so con structed that all the arms 26 and 26" bear on the runway, while the distances between the projections 29 and the cranks 30 vary from one.collecting'compartment to another If desiredgthe arms 25 may be of the of projection 31 and the line connecting t e.'

free ends of the arms 14. If said distance be smaller than the width of the wood piece the arms 14 are kept raised, until the edge of the wood piece ente s the space below the raised ends ofthe arms 14 the then dropping collecting compartment. If said distance be greater than the width of the wood piece, the arms 26 and 14 are lowered, before the edge of the wood piece reaches the space below the-ends of the arms 14.

. If all the arms 26 and 26 be placed in one straightvline, sortingaccording to thickness and width can obviously be effected without movingthe wood pieces longitudinally, provided that the circular saw be placed in correct position in relation to the projections 31.v

Combined sorting according to thickness width and quality or length may be effected by providing in the runway different groups of arms 26 and 26, groups which represents. different qualities corresponding to the positionv of different directing lines 26 '(I ig. 3) according to which the wood pieces are adjusted by being moved in longitudinal direction at the beginning of the runway, as stated above.

Figs. 12 and 13 illustrate a modified form of the device shown in Figs. 8 to 11 inclusive.

At one end the arm 26 is journaled on a pin 35 and at the other end by links and 46 movably' connected with an arm 47 secured to a shaft 48 to which the arms 14 are attached. J ournaled to the runway is a hook 49, one end of which is positioned above the runway in the path of' movement of the wood, the other end being provided 'with a notch 50 adapted to engage a pin 51 secured to the link 46. The arms 26" are, as the arms 26 and 26" in Figs. 8 to 11 respectively, provided with lateral projections. If an the wood, the pin 51 enters the notch 50. If the distance between the edge oi the projection 31 directed toward the arriving wood piece and the end of the hook 49 extending above the runway be greater than the width of the wood piece, the arm 26 will be lowered before the hook 49 is turned by the wood piece, and the pin 51 then leaves the notch 50, the hook 49,

when turned, not actuating the arms 14 which remain at rest. Should, on the con trary, the said distance be smaller than the,

width of the work iece, the arms 14 are turned (Fig. 13). are'turned only in case of wood pieces which are intended toi'drop down into the corresponding collecting compartment.

the position of said onsequently, said arms 7 The sorting device described above may be modified in many respects without deviating ing according to length, width and thickness wood piece down'into the corresponding instead of a single arm as described above. If desired, the arms actuated by (the wood may be provided with counter-weights in order, to reduce as far as possible their resistance to the wood pieces fed forward.

Having now particularly described. and ascertained the nature of my said invention and in what manner the .same is to be performed, I declare that what I claim is 1. A sorting device for sawn wood, com prising a runway, collecting compartments located below said runway, and vertically movable sorting means disposed in the'runway at the top of each compartment, said means closing the entrance thereto in one position and opening the same in another 'positionand adapted to control theentrance of the wood into the, compartment.

2. A sorting device for sawn wood, comprising a runway, collecting compartments located below said runway, and vertically movable sorting means disposed at the top ment of the wood, said means closing the, entrance to the compartment in one position and openin" the same in another position and adapte to be moved to open position by wood destined for the compartment.

3 3. A sorting device for sawn wood, comprising a runway, collecting compartments located below said runway, and vertically swin-gable sorting means dlsposed at the top of each compartment in the path of movement of the wood, said means closing the entrance to the compartment in one position and opening the same in another position and adapted to be swung ,to open position by wood destined for the compartment.

4. A sorting device for sawn wood, com- .PIlSll'l locate below said runway, means placed in the latter and serving to determine the longitudinal position of the wood pieces on the runway, and movable sorting means disposed in the runway at the top of each compartment, said sorting means closing the entrance thereto in one position and openof each compartment in the path of movea runway, collecting compartments lecting compartments below said runway,

top of each Compartment in the path of movement of the wood, said means closing the entrance to the compartment in one pothe same in another position and openin dfto be swung to open position and adapte sition by wood destined for the compartpiece so as to move the first named arms to opening pos1t1on.

7.,A sorting device for sawn wood, comprismg, a runway for the 'wood pieces, collecting compartments below said runway,

vertically swingable armsr disposed atthe 7 top of each compartment, shafts supporting said arms, said arms closing the entrance to the compartment in one posltlon and opening the same in another position, andother arms placed in the path of movement of the wood pieces and vertically swingable 1n I'GlfilJlOIL to the runway and the shafts,

said latter arms being adapted to be actuated by the wood pieces so as to swing the first named arms to opening position.

8. A sorting device for sawn wood, comprising a runway for the wood pieces, colvertically swingable arms disposed at the top of each compartment, shafts supporting said arms, said arms closing the entrance to the compartment in one position and opening the same in another position, other arms placed in the path of movement of-the wood pieces and vertically swingable in relation to the runway and the shafts, projections of different length extending from said latter arms in said ath of movement, said projections being a apted to be actuated by the wood pieces so as to swing the first named arms to opening position.

9. A sorting device for sawn wood, comprising a runway, collecting compartments below said runway, vertically swingable arms disposed at the top of each compartment and closing the entrance-to the compartment in one position and opening the same in another position, movable members placed above the runway in the path of movement of the wood pieces and connected with said swingable arms, said movable members causing, when actuated by the wood pieces, said swingable arms to open momentarily the entrance to the compartment, and other movable members placed on the runway in the ath of movement of the wood pieces and a apted, when actuated by' the same, to be connected with said swingable arms so as to keep them in opening position.

n testimony whereof I have signed my name.

GUSTAF EMANUEL JOHANSON. 

